Search found 279 matches

by JHenriksen
Fri Nov 02, 2012 10:36 pm
Forum: Milling Machines
Topic: Tang or Drawbar?
Replies: 39
Views: 11985

Re: Tang or Drawbar?

Jtrains advice on getting a drawbar type for milling is correct. Morse taper collets for mills that also use a drawbar are scarce and expensive. Non-drawbar morse collets tend to work out of the spindle if used for milling. The R-8 style collet is very common and has a good selection of sizes. Some ...
by JHenriksen
Thu Apr 05, 2012 10:38 pm
Forum: General Discussion
Topic: construction of a air hammer/ Jackhammer??
Replies: 15
Views: 5369

Re: construction of a air hammer/ Jackhammer??

I have experimented with the Lindsey designs. I have made changes and some of the internal parts and the overall designs to see what happens. bigger hammers go slower, less pieces to the mechanism are easier to change out and have spares. I dont have any working examples anymore, i keep messing with...
by JHenriksen
Fri Mar 16, 2012 8:34 pm
Forum: General Discussion
Topic: Rail chamfering Jig
Replies: 24
Views: 10860

Re: Rail chamfering Jig

There is a company in Melrose park Il that does basically that. They make keyed shafting in 20 foot lengths. Their equipment is all old cincinati horizontal mills with the tables locked. They have special fixtures clamped to the tables and a bar pulling mechanism on the outfeed end. The puller is ma...
by JHenriksen
Sat Mar 10, 2012 7:32 pm
Forum: Lathes
Topic: Shell Tellus 220 Equivalent?
Replies: 18
Views: 10115

Re: Shell Tellus 220 Equivalent?

This is a chart I coppied off the wall of the oil room at Ingersoll Milling machine co about 12 years ago.
http://www.metalwebnews.com/howto/chart/lube.htm
another chart to maybe help with viscosity things.
http://www.metalwebnews.com/howto/chart/viscosity.pdf
by JHenriksen
Mon Feb 27, 2012 10:36 pm
Forum: Milling Machines
Topic: Cincinnati Milling Machine 0-8
Replies: 1
Views: 1842

Re: Cincinnati Milling Machine 0-8

I think that is a small horizontal production mill. If so, they are not real amenable to general machining.
Parts may be available from this place in Elida, ohio. These are great guys to work with
http://partsnparts.com/
by JHenriksen
Thu Feb 09, 2012 12:16 am
Forum: General Discussion
Topic: Green Silicon Carbide Wheels ?
Replies: 18
Views: 8479

Re: Green Silicon Carbide Wheels ?

Green wheels are for carbide. I use one to shape my brazed tools, then use a diamond to put a nice clean edge on it. Grinding steel will wreck a green wheel in no time. White alox is good for tool steel bits. 80 grit 'h' is pretty fine. I won't do well to rough a cutter tool but does give a good edge.
by JHenriksen
Wed Jan 18, 2012 9:51 pm
Forum: Milling Machines
Topic: Parallels as Spacers on Table / Drilling and Tapping V-Block
Replies: 17
Views: 5644

Re: Parallels as Spacers on Table / Drilling and Tapping V-B

When I need to mill something real close to the table or vice jaws, I clamp everything as normal then extend the quill so the cutting tool lightly touches a piece of notebook paper on the surface i dont want to mill. two layers (.006) is a little safer. Any little ridge left from milling is small en...
by JHenriksen
Tue Dec 20, 2011 10:11 pm
Forum: Milling Machines
Topic: Lagun mill shaft help needed
Replies: 2
Views: 2008

Re: Lagun mill shaft help needed

Depends on what kind of damage to the bearing surfaces but I would try Locktite 660 "quickmetal" on the shaft with the pulleys that you have. That shaft is about 600$ I think. Are the clutch dogs on the bottom still sharp?
by JHenriksen
Tue Dec 20, 2011 10:07 pm
Forum: Milling Machines
Topic: welds are the devil
Replies: 11
Views: 4233

Re: welds are the devil

The filler metal was whatever type of wire happens to be in his welder. Welding iron with steel rod causes a hard 'white iron' area around the weld from the rapid uncontrolled cooling of the welded area, I think. It could be in part due to the graphite (carbon) in the iron being disolved into the we...
by JHenriksen
Wed Nov 30, 2011 9:26 am
Forum: Lathes
Topic: Turning/Cutting Questions
Replies: 7
Views: 1948

Re: Turning/Cutting Questions

I was taught that the feed per revolution should be approximatly 1/3 the radius of the insert or cutter for the best finish. .030 radius= .010 feed per rev. etc. This sometimes works, theres lots more issues going on as well. The larger the radius, the more horse power is needed. Everyones suggestio...
by JHenriksen
Wed Nov 09, 2011 11:43 pm
Forum: The Junk Drawer
Topic: Wide band radio ban
Replies: 17
Views: 6060

Re: Wide band radio ban

cb is still cb. 19 is the truckers and road band. hook an old one up to a linear and a big tall antenna. no telling who may park out front. I have a few old ef johnsons. The royce only worked on half the channels.It would be a good night for skipping and chatting with strangers in s america.
by JHenriksen
Wed Nov 09, 2011 8:51 pm
Forum: The Junk Drawer
Topic: Wide band radio ban
Replies: 17
Views: 6060

Re: Wide band radio ban

I recently tried to get several old motorola P100 vhf hand helds reprogrammed to use the MURS frequencies. I was first told the software is no longer available, then that the narrow band regs make these radios unuseable. Two vhf frequencies will remain wide band in the MURS range 154. *** whatever. ...